2006 Lexus GS 300 Owners Manual - Page 1079

STARTING AND DRIVING When the slip indicator light comes on, and the message "CHECK ECB*" appears on the multi−information display, the vehicle dynamics integrated management does not operate. Have your vehicle checked by your Lexus dealer as soon as possible. *: Electronically Controlled Brake System In addition, when the master warning light comes on, and the message "CHECK VGRS" or "CHECK P/S" appears on the multi−information display, the system will not be temporarily functioning. Although it is no problem in driving as usual, have your vehicle checked by your Lexus dealer as soon as possible. BRAKE SYSTEM GS430: This brake system has 3 independent hydraulic circuits. If any circuits should fail, the other will still work. However, the pedal will be harder to press, and your stopping distance will increase. Also, the brake system warning light (red) may come on. GS300: The tandem master cylinder brake system is a hydraulic system with two separate sub−systems. If either sub−system should fail, the other will still work. However, the pedal will be harder to press, and your stopping distance will increase. Also, the brake system warning light (red) may come on. CAUTION Do not overestimate the vehicle dynamics integrated management. Even when this management is functional, there is a limit to vehicle stability, and irresponsible driving may lead to an accident. When driving, you should always pay attention to your speed and keep a safe distance between your vehicle and the vehicle in front. CAUTION Do not drive your vehicle with only a single brake system. Have your brakes fixed immediately. Brake actuator (GS430) The brake actuator uses brake fluid pressurized by the pump to power−assist the brakes. If the brake actuator fails during driving, the brake system warning light (red) comes on and the buzzer sounds continuously. In this case, the brakes may not work properly. If the brake system warning light comes on, immediately stop your vehicle and contact your Lexus dealer. 433